Montoyerstraat 1

1000 Brussel • 54 registered now

exact location from the address register On OpenStreetMap

This address at a glance

Domiciliation address or business centre

54 companies are registered here now, in a building of about 1,700 m² of floor space: about 31 m² per company. Most are not tied to one another. Fewer than 0.1% of Belgian addresses have as many; with so little space per company and so few ties, that is what a letterbox address or business centre looks like.

More companies than at 99.9% of Belgian addresses (which have at most 35).
The address register knows 1 box number for this entrance, against 54 registered companies.
48 have their registered office here, 6 only an establishment or branch.
Most common main activity: Activities of lawyers (69101), at 5 of the 18 current companies with a known activity (14 different). Then Agents in the wholesale of industrial machinery, ships and aircraft (46140): 1, Air transport (51100): 1.
7 of the 53 companies share a current director with another company here; the largest group has 3.
Half of the current companies have been registered here for less than 38 years.
4 companies are dissolved or no longer in the register.

What you can do with this

For one company at this address: open its dossier and check whether it has an establishment elsewhere. That is most likely where it actually operates.
Ask the company where it works and who receives its mail. A registered office in a business centre is allowed and is not a bad sign in itself.
Look at staff and fixed assets in its annual accounts: they show whether there is real activity behind it.
Filter the list below by outcome, or export all of it as CSV.

54 registered now

54 ever registered

0 bankrupt or reorganisation

4 dissolved or inactive

0 new in 12 months

The building

cadastre and 3D survey

Footprint: 411 m²; measured, the ground under the building
Floor area (estimate): ~1,700 m²; 2 storeys, estimated from the building volume

Per current company: ~31 m²
Box numbers: 1
Height: 28 metres
Volume: 4,958 m³
Plot: 388 m²

Buildings from the cadastre and the 3D survey (LiDAR), box numbers from the BEST address register, heritage from the regional registers. Who is registered here, not who owns it.

Registrations per year, and what became of them

2014

2016

2018

2020

2022

2024

2026

still here moved bankrupt reorganisation dissolved or inactive

Companies at this address

54 in total

Company	At this address	Outcome
Aircraft Owwers and Pilots Association Belgium BE 0408.095.628	Registered office since 06-1965	Active here
AMICALE DES HOTESSES DE L'AIR DE BELGIQUE BE 0408.974.863	Registered office since 07-1966	Active here
ASSOCIATION BELGIQUE-COTE D'IVOIRE BE 0434.583.556	Registered office since 10-1987	Dissolved or in liquidation
Association d'Aéromodélisme BE 0417.988.935	Registered office since 12-2020 shares director	Active here
ASSOCIATION INTERNATIONALE DU CERTIFICAT DE TOURISME - INTERNATIONAL TOURISM CERTIFICAT ASSOCIATION BE 0465.638.503	Registered office since 12-1998	Active here
Association nationale des Officiers de Réserve et Anciens Officiers de la Force Aérienne BE 0408.983.573	Registered office since 12-1933 shares director	Active here
ASSOCIATION OF EUROPEAN PERFOMERS ORGANISATION ASBL A.E.P.O. BE 0850.825.008	Registered office since 10-1995	Active here
Association pour la Promotion de l'Aérodrome de Grimbergen - Vereniging voor de Promotie van het Vliegveld Grimbergen BE 0418.945.473	Registered office since 05-1978	Active here
AVIATION BUSINESS CONSULTANTS BE 0436.388.053	Registered office since 01-1989	Active here
Aviation Research and Development Institute BE 0438.050.119	Registered office since 03-1989	Active here
BATUA, ASSOCIATION BELGE DES UTILISATEURS DES TRANSPORTS AERIENS - BELGISCHE VERENIGING VOOR LUCHTVERVOERVERBRUIKERS BE 0430.612.296	Registered office since 01-1985	Dissolved or in liquidation
Belgian Veterab Aircraft Federation - Flying Museum - Stampe Club BE 0419.750.969	Registered office since 05-1979	Active here
BELGIAN AIR FORCE ASSOCIATION BE 0836.730.809	Registered office since 06-2011 shares director	Active here
BELGIAN AIRCRAFT HOMEBUILDERS - FEDERATION NATIONALE DES CONSTRUCTEURS AMATEURS D'AERONEFS -NATIONALE FEDERATIE DER AMATEUR VLIEGTUIGBOUWERS BE 0417.412.180	Registered office since 01-1977	Active here
Belgian Flight Crew Association BE 0450.411.283	Registered office since 05-1993	Dissolved or in liquidation
Belgian ULM Federation BE 0422.604.155	Registered office since 04-1981	Active here
centre europeen defence - securite environnement en anglais european centre for defence-security and environment BE 0818.947.640	Registered office since 08-2009	Active here
COTEXAL BE 0436.042.714	Establishment since 12-1988	Active here
Dr. NADIA KADI, PSYCHIATRE BE 0683.788.038	Registered office since 10-2017	Active here
ELISA FONTAINE BE 1009.681.413	Registered office since 05-2024	Active here
Euro Space Society BE 0452.675.541	Registered office since 03-1994	Active here
EUTRALEX AEROSPACE CONSULTING BE 0830.955.745	Registered office since 11-2010	Active here
EUTRALEX GROUP BE 0819.530.729	Registered office since 10-2009	Active here
Fonds national Alfred Renard BE 0444.083.519	Registered office since 05-1991	Active here
FRATERNELLE DES UNITES CYCLISTES FRONTIERE DE BELGIQUE - VERBROEDERING DER GRENS FIESTSERS EENHEDEN VAN BELGIE BE 0430.989.509	Registered office since 02-1984	Active here
Fédération belge de Paramoteur - Belgische Paramotor Federatie BE 0457.632.736	Registered office since 12-1995	Active here
Fédération belge de Vol Libre - Belgische Vrije Vlucht Federatie BE 0416.058.635	Registered office since 10-2005	Active here
General Aviation Professionnal Association of Belgium BE 0423.497.446	Registered office since 04-1979	Active here
IMMO.TRA BE 0429.126.713	Establishment since 10-1991	Active here
JEAN-MICHEL FOBE BE 0469.451.492	Registered office since 01-2000	Active here
Koninklijk nationaal verbond "elf november", fédération royale nationale "onze novembre" BE 0410.424.321	Registered office since 03-1936	Active here
KONINKLIJKE BELGISCHE AERO-CLUB BE 0407.693.176	Registered office since 05-1927	Active here
KONINKLIJKE BELGISCHE BALLONVAART FEDERATIE VAN DE KONINKLIJKE AEROCLUB VAN BELGIE - FEDERATION ROYALE D'AEROSTATION DE BELGIQUE DE L'AERO-CLUB ROYALE DE BELG BE 0408.612.696	Registered office since 04-1933	Active here
L'Association des Femmes Universitaires Catholiques BE 0409.407.108	Registered office since 11-1949	Dissolved or in liquidation
La Maison des Ailes - Het Huis der Vleugels BE 0408.251.323	Registered office since 12-1937 shares director	Active here
Le Petit Coq BE 0407.012.889	Registered office since 12-1969	Active here
LES AILES DES ANGES BE 0518.877.348	Establishment since 04-2013	Active here
Les Vieilles Racines Belges BE 0410.906.846	Registered office since 01-1939	Active here
Ligue belge d'Aéromodélisme - Belgische modelluchtvaart Liga BE 0418.090.685	Registered office since 12-1977 shares director	Active here
MILITARY AIR TRAFFIC CONTROLLERS ASSOCIATION OF BELGIUM BE 0476.074.515	Registered office since 02-1998	Active here
Piloten zonder Grenzen België BE 0424.692.526	Registered office since 01-2008	Active here
ROZADA CAMILLE BE 1009.935.195	Registered office since 05-2024	Active here
Sabena Aeroclub BE 0410.651.676	Registered office since 04-1954	Active here
Sabena Lodestar BE 0788.887.934	Registered office since 07-2022	Active here
Sabena Old Timers BE 0434.464.087	Registered office since 06-1987	Active here
Senior Aviators'Association Les Vieilles Tiges de l'aviation belge BE 0409.425.023	Registered office since 01-1937 shares director	Active here
SICHILIA BE 0797.720.377	Establishment since 01-2023	Active here
SKYVENTURES BE 1002.051.174	Branch since 10-2023	Active here
Table Royal Union Club BE 0435.156.054	Registered office since 03-1988 shares director	Active here
TaxiEuropeAlliance BE 0675.382.690	Registered office since 05-2017	Active here

Export as CSV Network from this address

What this check does and does not say

A shared address is not suspicious in itself: office buildings, accountants and business centres host many companies. The verdict says what kind of address this is, nothing about any individual company.

The comparison rests on all 1,408,687 active Belgian addresses: half have one company, 95% at most five, 99% at most ten, 99.9% at most 35. There is no national reference for bankruptcies and arrivals; they are shown here as counts.

A shared director is a current board mandate at two companies at this address; statutory auditors and liquidators do not count.

Floor area and storeys are not measured anywhere: the building shows them as estimates, next to the measured footprint. No register of building use (office, housing) is available.

Sources: KBO (companies, addresses, activities and legal situation), Belgian Official Gazette (judgments), BOSA BEST (addresses and box numbers), cadastre and 3D survey (parcels and buildings).

Source: KBO (Kruispuntbank van Ondernemingen) · Belgian Official Gazette · BOSA BEST · Cadastre/LiDAR. Last updated: 18-10-2026.